D38999/21YB35PN | 13-контактная герметичная розетка из нержавеющей стали (размер 11)
The D38999/21YB35PN is a size 11 MIL-DTL-38999 Series III hermetic receptacle with 13 pin contacts. Features “Y” passivated stainless steel for high-vacuum electronic grids.
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D38999/21YB35PN Hermetic Sealing for High-Vacuum Electronic Grids
Он D38999/21YB35PN is a specialized interconnect solution engineered for electronic grids that operate across significant pressure differentials, such as space-simulated vacuum chambers and pressurized avionics enclosures. Unlike standard environmental connectors that rely on rubber grommets, this “Y” class hermetic receptacle utilizes a glass-to-metal seal architecture. This construction ensures a leakage rate of less than 1×10^-7 cm³ of helium per second at a one-atmosphere pressure differential. By maintaining a true hermetic barrier, the D38999/21YB35PN prevents the migration of moisture, gases, and contaminants into sensitive internal electronics, ensuring system stability in the most unforgiving orbital or deep-sea environments.
Основные характеристики
Материал оболочки | Номинальное напряжение | Текущий рейтинг | Рабочая температура | Степень защиты от проникновения влаги и пыли | Циклы спаривания | Ключевая модуляция и поляризация | Соединение |
|---|---|---|---|---|---|---|---|
Алюминиевый сплав | ~1000 В переменного тока | ~23 А | от -65 °C до +200 °C | IP67 | 500 | N | резьбовая муфта |
Passivated Stainless Steel for Maximum Corrosion Resistance
The “Y” class designation indicates that the D38999/21YB35PN is manufactured from high-grade stainless steel with a passivated surface finish. This material choice provides superior mechanical strength and exceptional resistance to chemical oxidation compared to standard aluminum alloy variants. The passivation process creates a microscopic protective oxide layer that shields the 11-B shell from aggressive saline spray, industrial solvents, and atmospheric sulfurization. This makes the receptacle an ideal choice for maritime sensor arrays and chemical processing control grids where long-term material integrity is required under constant exposure to corrosive elements.
Universal N-Keying and Standardized Intermateability
The D38999/21YB35PN utilizes the standard “N” (Normal) polarization keyway, ensuring maximum intermateability with any standard-issue Series III plug of the same size and layout. For engineers designing complex bulkheads, the “N” indexing provides a predictable and reliable mating experience, facilitating global supply chain compatibility. The triple-start threaded coupling mechanism provides a self-locking connection that is inherently resistant to vibration-induced decoupling. This ensures that the 13-pin hermetic interface remains securely engaged, providing constant electrical continuity even during the high-stress launch phases of aerospace missions or heavy-machinery operations.
Precision Contact Fidelity and 11-35 High-Density Layout
Within its compact size 11 housing, the D38999/21YB35PN employs the 11-35 high-density insert arrangement, offering thirteen independent conductive paths using Size 22D pin contacts. In this hermetic configuration, the contacts are typically designed as non-removable solder cups, ensuring a permanent and air-tight integration within the glass insulator. Each copper alloy pin is finished with high-grade gold plating to maintain low contact resistance and prevent oxidation over decades of service. Despite the close proximity of the thirteen pins, the specialized glass dielectric provides exceptional insulation resistance and thermal stability, ensuring signal purity for both high-speed data and sensitive analog signals.
Structural Integrity and Square Flange Stability
The structural reliability of the D38999/21YB35PN is supported by its Type 21 square flange design, which is specifically optimized for permanent mounting on equipment panels. The stainless steel flange provides a rigid platform that can withstand higher mounting torque than aluminum shells, ensuring a stable interface even under extreme mechanical loads. Furthermore, the 100% scoop-proof shell architecture ensures that the thirteen pin contacts are recessed deeply enough within the housing to prevent any bending if the mating plug is misaligned during the connection process. This combination of hermetic precision and mechanical robustness makes the D38999/21YB35PN a critical component for mission-critical digital grids.
Часто задаваемые вопросы
What makes the D38999/21YB35PN "hermetic"?
What makes the D38999/21YB35PN "hermetic"?
It uses a glass-to-metal seal instead of standard plastic or rubber inserts, allowing it to maintain a gas-tight barrier even under high pressure differentials.
How many contacts are provided in the 11-35 layout?
How many contacts are provided in the 11-35 layout?
The 11-35 layout provides thirteen independent signal channels using high-density Size 22D pin contacts in a compact size 11 shell.
What are the advantages of the "Y" stainless steel finish?
What are the advantages of the "Y" stainless steel finish?
The passivated stainless steel provides maximum corrosion resistance and higher mechanical strength, making it suitable for space, marine, and industrial chemical environments.
Can the contacts in this hermetic model be removed?
Can the contacts in this hermetic model be removed?
No, in the D38999/21YB35PN, the pin contacts are fused into the glass dielectric to ensure a permanent air-tight seal and are usually terminated via solder cups.
Is the "N" keying compatible with standard Series III plugs?
Is the "N" keying compatible with standard Series III plugs?
Yes, the “N” keying is the universal standard polarization, ensuring this hermetic receptacle will mate with any standard-issue Series III size 11-35 plug.
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